Connecting Systems for Timber Frame and Mass Timber Construction

KNAPP® Connecting Systems for Timber Frame and Engineered Timber Construction provide not only a very high degree of prefabrication, but also maintain the highest safety standards.  Our connecting systems are not only compliant with the (ETA) European certification, but have the CE-marking as well.

Like all KNAPP® connectors, our products can easily be snapped into place with recessed fasteners that aren’t visible, when assembled.  Regular external inspection guarantees maximum security for contractors, architects, manufacturers, engineers, and owners. KNAPP® connectors not only guarantee to meet the highest standards in the manufacturing and assembling process, but also make the structure aesthetically pleasing.

Acro & Basis Systems

Connectors for pillar, post and column mounting

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The ACRO System Connectors are for constructions with simple column and beam joints.
The BASIS System is a connector for direct mounting on solid surfaces, such as concrete, stone, masonry.

The ACRO-System has ten basic fastener parts, which allows a large variety of different fasteners to be created, and provides multiple applications. With little effort, the connectors can also be put together and mounted on site. It allows a very high degree of pre-manufacturing and a quick process assembly.

They are used for all kinds of prefabricated timber construction, such as smaller sunrooms, pergolas or garden houses, as well as “classic” carpentry. The ACRO-System parts are screwed on and snapped together. They are non-visible and can be disassembled at any time.

ACRO-System is designed for connections with tested stress values in structural timber construction, i.e. for simple post and beam joints.

  • Non-visible – concealed, self-tightening column and beam connectors.
  • User friendly – disassembly possible if needed.
  • Self-tightening – through adjusting of the screws.
  • Efficient – high degree of pre-manufacturing.
  • Simple transport – components can be transported disassembled and simply assembled on site.
  • Fast – saving of throughput times in production.
  • Safe – tested by HFA (Holzforschung, Austria).
  • Adjustable – the connector can be adjusted as needed.

Application:
Interior design, exhibition, constructions in exhibition and museum, sunrooms and all types of small timber structures.

Processing – milling:
To recess the connector, a groove is routed in the end-grain or the face-grain. The groove is 8.5 mm deep and done by a hand router, CNC machining center with a slot cutter Ø 15 mm, the dimension depends on the connector size. Drilling and milling jigs are available for a simple and precise processing.

The respective ACRO-System consists of several identical connector parts, made of high strength blue-galvanized weather-resistant steel, and is manufactured in Austria.
The choice of the correct ACRO-System connector depends on the respective timber dimension. The milling operations can be made optionally with a hand router or a CNC machining center. The system is tested and available in seven different sizes.

Milling: please refer to the construction manual.

The BASIS System is an extension of the ACRO System. The ACRO connector is mounted on a galvanized steel plate and comes already assembled that way. The fastener can be screwed on solid surface, such as screed, tiles, stone, etc. The counterpart is attached to the column. This makes an almost non-visible (only a small slot is visible) and very durable attachment of columns to the ground.
Note*, the BASIS System is not designed for freestanding columns.

The BASIS System is available in two sizes.

  • Non-visible – concealed, self-tightening column and beam connectors.
  • User friendly – disassembly possible if needed
  • Self-tightening – through adjusting of the screws.
  • Efficient – high degree of pre-manufacturing.
  • Simple transport – components can be transported disassembled and simply assembled on site.
  • Fast – saving of throughput times in production.
  • Safe – tested by HFA (Holzforschung Austria)
  • Adjustable – the connector can be adjusted as needed.

Applications:
The BASIS system is a connecting system for the direct mounting of beams, columns and pillars on solid surfaces, such as concrete, stone or masonry.

Interior design, exhibition construction, sunrooms.

Processing – Milling:
To recess the connector, a groove is routed in the end-grain or the face-grain. The groove is 13 mm deep and done by a hand router or CNC machining center with a slot cutter Ø 15 mm. The dimension depends on the connector size. Drilling and milling jigs are available for a simple and precise processing.
The respective BASIS System consists of several identical connector made of high-strength blue-galvanized weather-resistant steel and is manufactured in Austria.
The choice of the correct BASIS System connector depends on the timber dimension. The milling operations can be made optionally with a hand router or a CNC machining center. The system is tested and available in seven different sizes.

Milling: Please refer to the construction manual.

RICON®

Connector for main and secondary beam joints, up to 26 kN load-bearing

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The RICON® connecting system is a unique connector for main and secondary beam joints and can be installed on beams with a width as little as 50 mm.